US3004687A - Pump operated oiler made to attach to oil cans - Google Patents

Description

PUMP OPERATED OILER MADE TO ATTACH T0 OIL CANS Filed Sept. 8, 1958 A. P- GERFEN Oct. 17, 1961 2 Sheets-Sheet 1 INVENTOR. A27 I103 k Giff! BY ATTORNEY PUMP OPERATED OILER MADE TO ATTACH TO OIL CANS Filed Sept. 8, 1958 A. P. GERFEN Oct. 17, 1961 2 Sheets-Sheet 2 IN VENTOR. fill/ 0R R GERFEN United States Patent f 3,004,687 PUMP OPERATED OILER MADE TO ATTACH T0 OIL CANS Arthur P. Gerfen, Box 1132, Cushing, Okla. Filed Sept. 8, 1958, Ser. No. 759,572 4 Claims. (Cl. 222-82) This invention relates to dispensing apparatus and, more particularly, to a device for forcibly ejecting the contents of a can under pressure.

There are many various types and grades of lubricants now on the market that vary in viscosity so that some are difiicult to pour outwardly from the can by gravity. In other instances, the opening of an oil can subjects the contents thereof to 'dust, moisture, and other harmful elements in the air as the oil is being used. Accordingly, it is an object of the present invention to provide a combined oil can tapping and oil dispenser device that is extremely simple in construction, etficient in operation, and which will overcome the aforementioned difliculties.

Another object of the present invention is to provide a combined oil can tapping and dispensing device that may be readily attached to and removed from conventional oil cans so as to make it universally adaptable for use with all types and grades of lubricant.

Still an additional object of. the present invention is to provide a combined tapping and dispensing device of the type described which will dispense the contents of oil cans under pressure so as to save a considerable amount of time, completely empty the contents of the can, and to provide for the emptying of such cans without spilling.

All of the foregoing and still further objects and advantages of this invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing, wherein:

7 FIGURE 1 is a perspective view of an oil can tapping and dispensing device made in accordance with the present invention in operative use;

FIGURE 2 is a longitudinal cross sectional view taken along line 2-2 of FIGURE 1;

FIGURE 3 is a perspective view of a trigger member forming a part of the present invention;

FIGURE 4 is a perspective view of an eye hook forming another part of the present invention;

FIGURE 5 is a perspective view of a cylinder end bushing forming still another part of the present invention;

FIGURE 6 is an enlarged fragmentary longitudinal cross sectional view of certain parts of the apparatus shown in FIGURE 2;

FIGURE 7 is a front end elevational view of the main body of the pump shown in FIGURE 1;

FIGURE 8 is a side elevational View of the apparatus shown in FIGURE 7;

FIGURE 9 is a perspective view of certain portions of a mounting plate assembly forming another part of the present invention;

FIGURE 10 is a perspective view of a gasket member forming still another part of the present invention;

FIGURE 11 is a perspective view of a hand grip member forming a further part of the present invention;

FIGURE 12 is an enlarged transverse cross sectional view taken along line 12-.12 of FIGURE 9;

FIGURE 13 is an enlarged fragmentary transverse cross sectional view taken along line 13-13 of FIGURE 1; and

FIGURE 14 is an enlarged fragmentary plan view of certain parts of the hand grip member shown in FIGURE 11.

Referring now to the drawing, and more particularly to FIGURES 1 and 2 thereof, a combined oil can tapping and dispenser device 15 made in accordance with the 3,004,687 Patented Oct. 17, 1961 present invention is shown to include a mounting plate assembly for attaching the unit to the top of a conventional oil can.

As is more clearly shown in FIGURE 9 of the drawing, the mounting plate assembly includes a pair of spaced apart segmental circular plates 16 integrally connected together by means of a hand grip member 18 that extends therebetween and is provided with a pair of apertured ears 20 through which rivets 22 extend, as shown in FIGURE 12. The main body member 24 of the operating mechanism is secured to the apertured portion of the hand grip member 18, such as by rivets, pins, or the like. A tubular member 26 extends through an aperture in the hand grip member 18 and is threadedly engaged within an internally threaded bore in the main body member 24 that communicates with a central chamber 28. A ball type check valve 30 opening inwardly into the chamber 28 is normally maintained in closing engagement with the adjacent end of the tube 26 by means of a compression spring 32. The inner end of this chamber 28 is also in communication with a main cylinder 36 through an outlet port 34. A piston 38 supported within the cylinder 36 for reciprocating longitudinal movement by means of a plunger 40 that extends outwardly through an end bushing 42, is normally urged toward an outward direction by means of an internal compression spring 44.

The chamber 28 is' also provided with a central aperture 46 within which a second ball type check valve 48 is normally seated so as to block flow through a nozzle 5i) carried upon the main body member 24 at a point opposite from the tube 26. A spring 52 normally maintains the ball member 48 in closing engagement with the aperture 46. The main body member 24 is also provided with an additional bore 54 that communicates with the inner end of the nozzle 50 that is normally closed by a hang hook eye 56. Accordingly, it is possible to interchange the positions of the nozzle 50 with the hang hook 56, should such be desired. Another tube 58 carried by the main body member 24 communicates with the interior of the cylinder 36 at the end opposite from the outlet 34. This tube 58 serves as an inlet, as will be hereinafter more fully described.

The handle grip mmeber 18 is also provided with a pair of upwardly extending, spaced apart and parallel arms 66 that rotatably support a trigger member 62 by means of a transversely extending pivot pin 64. This trigger member 62 includes a depending pressure member 60 that is in abutting engagement with the outer end of the plunger 40 that is supported for reciprocating longitudinal movement upon the hand grip 18 through an apertured guide plate 70. Each of the upstanding brackets 66 is provided with an inwardly extending lug 68 that serves as a stop which limits the downward movement of the trigger 62. It will thus be recognized that a downward pressure upon the trigger member 62 is operative to cause the pressure member 60 to urge the plunger 40 and piston 38 inwardly against the action of the spring 44, all for purposes hereinafter more fully explained.

Another pair of upstanding flanges '72, one on each of the segmental circular plates 16 threadedly supports a thumb screw 74 which may be used to clamp the mo|unting plate assembly to the top of a can 86. However, a gasket member 76 is first seated within the recess formed by the upwardly extending bead 78 and the end of the can 80, such gasket 76 being provided with a pair of guide bushings 84, 86 that effectively guide the tubes 26, 58 into proper piercing engagement with the end wall 35 of the can, such gasket 76 further serving to prevent leakage of the contents of the can during the dispensing thereof.

In actual use, the thumb screw 74 is threaded outwardly so as to enable the depending webs 82 of the mounting plates to be spread apart so as to receive the end of the 3 can therebetween, following which the thumb screw 74 is tightened so as to secure the assembly to the can. However, before this is done, the tubes 26, 58 are forced downwardly through the bushings 84, 86 of the gasket 76 into piercing relationship with the can so that'the parts assume the position illustrated in FIGURES 1 and 2 of the drawing. With the parts properly clamped in place, the first downward movement of the trigger 62 is operative to merely force air outwardly from the chamber 36 and through the aperture 46 in the main body member 24. Upon the return movement of the piston 33 by the spring 44, a partial vacuum is created within the chamber 28 so as to draw oil upwardly through the tube 26 past the check valve 30 and into the interior of the cylinder 36. As the result, the next downward movement and all subsequent downward movements of the trigger 62 is operative to force such oil contained within the cylinder 36 into the nozzle 50 and outwardly through the end thereof. The outlet tube 58 serves to allow the rearward movement of the piston 38 without a build up of pressure that would otherwise interfere with the proper operation of the mechanism. The check valve 48 is normally closed and allows the oil to be drawn upwardly through the tube 26 during the return stroke of the piston 38.

While this invention has been described with particular reference to the construction shown in the drawing, it is to be understood that such is not to be construed as imparting limitations upon the invention, which is best defined by the claims appended hereto.

Having thus described my invention, I claim as new and desired to secured by Letters Patent:

1. An oil can tapping and dispenser device comprising, in combination, a substantially rigid main body portion, a mounting plate supporting said main body portion, clamp means integral with said mounting plate releasably securing said mounting plate upon the end wall of a cylindrical can, said main body portion including a pump cylinder, a pair of ducts having piercing means carried by 'saidmain body portion for piercing the end wall of the can for tapping the contents therefrom, a discharge nozzle extending outwardly from said main body portion, an oil inlet check valve communicating with one end of said cylinder and with one of said ducts, an oil outlet check valve communicating with said one end of said cylinder and with'said nozzle, a piston slidably supported in said cylinder means to efiect reciprocating longitudinal movement of said, piston, the other of said ducts communicating with the other end of said cylinder, said mounting plate assembly comprising a pair of sp'acedapart segmental circular plates, a handle grip member connected between said plates, and said main body portion being mounted upon said handle grip member.

2. An oil can tapping and oil dispenser device as set forth in claim 1, further comprising a trigger, a pair of spaced apart brackets integral with said handle grip member pivotally supporting said trigger, and pressure means acting between said trigger and said piston for effecting said reciprocating longitudinal movement.

3. An oil can tapping and oil dispenser device as set forth in claim 2, wherein said pressure means comprises a plunger carried by said piston extending rearwardly outwardly of said cylinder, and a crank arm integral with said trigger in abutting engagement with said plunger.

4. An oil can tapping and oil dispenser device as set forth in claim 3, wherein said clamp means comprises a plurality of circumferentially spaced apart spring fingers depending from said mounting plate assembly slidably engaging the sides of said can.

References Cited in the file of this patent UNITED STATES PATENTS 1,344,801 Kitaoka June 29, 1920 2,086,467 Bryan July 6, 1937 2,257,725 Davis Oct. 7, 1941 2,454,343 Rotter et a1 Nov. 23, 1948 2,492,309 Miller et al Dec. 27, 1949 2,792,969 Anderson May 21, 1957

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